android: the handoff — the pending rounds, the pipeline, and what is unverified

Everything written this session that has not been through the device: rounds 43
to 48 (each patch adversarially verified, 43's transient-notice expectation
fixed), a partial round 49, the pipeline scripts, the Android Auto design and
the icon comparison mock. Also the two harness changes that were never A/B'd —
adaptive waits, which may only shorten a declared wait and never lengthen it,
and a ship that runs the mock walk and the deploy at the same time. The A/B and
its 255-step baseline are in handoff/tools; main stays at what the phone has
actually walked.

handoff/rounds/ins-r32-mobile-onmount.txt

@@ -0,0 +1,9 @@
+    onMount(() => {
+        /* the boot census starts here. Every command the app issues between
+           this line and the first frame is counted, and the mock walk holds
+           a budget against the count — the point is to catch a round that
+           loads the world at boot, not to police milliseconds. */
+        boot.t0 = performance.now();
+        try { performance.mark("ss:boot"); } catch { /* a webview without the entry types */ }
+        loadPrefs();
+        bootNav();